Door opening and closing apparatus



P. K. STROCHALEN.

DOOR OPENING AND CLOSING APPARATUS.

v APPLICATION FILED NOV-15,l9Z0. L4]. 6, 138., Patented May 16, 1922,

2 SHEET$-SHEET I.

ve whom Paul H. Sirachalm.

P. K. STROCHALEN.

DOOR OPENING AND CLOSING APPARATUS.

1,416,138. I APPLICATION FILED NOV. 15, 1920- May 16 2 SHEETS-SHEET 2.

\ j/////////////////l/ /ll/l/l/l/Ill/Il/lll/S ll/l/l//////l////lll////ll/// 3 Inventor Paul K. .Stroclzql en.

S T A T E ()F'FICEo PAUL K. STBOCHALEN, OF

OAKLAND, CALIFORNIA.

DOOR OPENING AND CLOSING APPARATUS.

Specification of Letters Patent.

Patented May 16, 1922.

T 0 all whom it may concern Be it known that I, PAUL K. STRooHALEN, a citizen of the United States, residing at Oakland, in the county of -Alameda and State of California, have invented certain new and useful Improvements in Door Opening and Closing Apparatus, of which the following is a specification.

My invention is an improved door opening and closing apparatus particularly applicable togarage doors.

Referring to the annexed drawing which forms a part of this specification:

Figure 1 is a plan view of my invention applied to a garage, the garage being shown in horizontal section taken on line 11 of Figure 3.

Figure 2 is a vertical longitudinal sectional view of-my invention taken on line 2-2 of Figure 1.

Figure 3 is a transverse vertical section of my invention taken on line 3-3 of Figure 1.

Figure 4 is a horizontal section of the outside door operating means.

Figure 5 is .an elevation of the wrench for actuating the outside door operating means.

Figure 6 is a fragmentary plan of the door swinging means. i

The garage indicated 1 in the drawing has a pair of doors 2 and 3 hinged by hinges 4 and 5 to open outwardly. To the inside of the door 2 at the upper left corner thereof is secured .a bracket 6 formed with arms 7 and 8, the arm 7 extending horizontally parallel to the door beyond the left edge thereof and the arm 8 extending horizontally inwardly from the bracket at right angles to the arm 7. To the inside of the door 3 at the upper right corner thereof, is secured a bracket 10 formed with arms 11 and 12, the arm 11 extending horizontally parallel to the door beyond the right edge thereof and the arm 12 extending horizontally inwardly from the bracket at right angles to' the arm 11. On a stud 13 secured to the front wall of the garage at the right side of door 3 are journaled two pulleys 14 and 15, said pulleys being secured together so as to turn together. ulleys 16, 17 and 18 are mounted vertically on the inside of the front wall near the top of the garage at the right of door 3. A pulley 19 is mounted horizontally on the inside of the front wall of the garage just above and half wa to the right of pulley 18. Pulleys 20 an 21 are mounted vertically on the inside of the front wall near the top of the garage at the left of door 2. A pulley 22 is mounted horizontally on the inside of the front wall of the garage just below and to the left of pulley 21. A pulley 23 is mounted horizontally inside the garage at the meeting edges of the doors 2 and 3 near the top of said doors on a bracket 24 secured to the inside of the front wall of the garage. A rope 25 extends around pulley 14, one strand of said rope extending from said pulley over pulley 17 and 20, under pulley 21 and around pulley 22, and the other strand of said rope extending over pulley 16 and 23, the end of the aforesaid strand being connected to arm 8 and the end of the latter strand being connected to arm 8 and extending over a pin 26 on the arm 8. A rope 27 passes around pulley 19 and over pulley 18 and is secured at one end to rope 25 at 28 and at its other end to bracket arm 12. A rope 29 passes around pulley 23 and isconnected at one end at 30 to rope 25 and extends over a pin 31 on arm 12 and is connected at its other end to arm 11.

An outside manual door operating device 31 is embedded in the ground in front of the garage at the side of door 3. Said device includes a casing 32, a gear 33 secured on a square shaft 34journaled in the center of said casing, a disk 35 provided with holes 36 secured on said shaft above said gear, and a pair of racks 38 and 39 mounted in slideways 40 and 41 at the sides of the casing, said racks meshing with said gear. The end of the casing 32 facing the garage is tapered and is provided with an opening 42 which communicates with a tunnel 43 in the ground leading under and into the garage. A pair of pulleys 44 and 45 are mounted in the' garage in theinner end of the tunnel 43. A rope 46 extends around pulley 15, over pulleys 44 and 45, through tunnel 43 and opening 42 into casing 32 and is connected at its ends to racks 38 and 39 respectively. The upper face of the disk 35 rests flush with the surface .of the ground. A wrench 50 includes a shank 51, a connecting member 52 hinged at 53 to the lower end of shank 51, a wrench member 54 hinged at 55 to the lower end of connecting member 52 at right angles to the hinge 53, and a handle 56 on the upper end of the shank 51. The wrench member 54 has two prongs 57 adapted to enter two opposite holes 36 in the disk 35.

Bearings 60, 61 and 62 are secured to the no i floor of the garage in the rear and at the right side thereof, in which bearings is journaled a rock shaft 63. To the end of said rock shaft adjacent the right side wall of th garage is secured a pair of arms 64 and 65 to which are respectively secured the ends of a rope 66 which travels over verticaltpulleys 67 and 68, horizontal pulleys 69 and 70 mounted on theinside of the right side wall of the garage, and around pulley 15. A curved trip member 71 is secured to the other end of the shaft 63 in line with the right side of door 3.

a The operation of my invention is as follows:

To open the garage doors from the outside to let the automobile enter the garage, the prongs 57 of the wrench 50 are inserted into two opposite holes 36 and the wrench turned counterclockwise which correspondingly turns the disk 35 and the gear 33. The gear 33 draws the rack 38 away from the garage and the rack 39 toward the garage during which operation the rope 46 is drawn around pulley 15 and said pulley rotated counterclockwise. The rotation of pulley 15 in such direction causes the rope 25 to pull to trip member 71, rocking shaft 63 and arms 1- the right over pin 26 on arm 8 and the rope 29 to pull to the left over pin 31, on the arm 12 and open the doors 2 and 3. The autotomobile is driven into the garage until one of its front wheels rides upon the curved 64 and 65 backwardly, during which operation the rope 66 is drawn so that the pulleys 15 and 14 are rotated clockwise and the ropes 25 and 27 drawn so that they pull respectively to the left and to the right on arms 8 and 12, whereupon the doors 2 and 3 are swung closed. I

In order to open the garage doors from the inside it is only necessary to back the automobile. As the automobile backs out of the garage the front wheel on the curved trip member 71 rocking shaft 63 and the arms 64 and 65 forwardly, during which operation the rope 66 is drawn so that the pulleys 15 and 14 are rotated counterclockwise out of the garage, the wrench 50, being en-.

gaged with the disk 35, is turned clockwise, which turns said disk and the gear 33 correspondingly, The gear 33 draws the rack 38 away from the garage and the rack 39 toward the garage which causes the rope 46 to rotate the pulleys 15 and 14 clockwise and to draw the ropes 25 and 27 so that they pull respectively to the left and to the right on arms 8 and 12 and close the doors 2 and 3. 7

Having described my invention, I claim:

1. A door opening and closing apparatus including a: casing embedded in the ground in front of the door, a vertical shaft journaled in' said casing, a gear and a disk secured on said shaft, the upper face of said disk being flush with the surface of the ground, a pair of racks slidably mounted in said casing meshing with said gear at opposite sides thereof, a pulley, a rope passing around said pulley and connected at its ends to said racks respectively, and means for enga ing and turning said disk to rotate said p11 ley, and means actuated by said pulley or opening and closing said door.

2. In combination with-a hinged door, a bracket secured to said door near the hinged edge thereof, an arm on said bracket extending horizontally from said bracket over the hinged edge of the door and parallel to the door, a second arm extending horizontally inwardly from said first arm at right angles to said first arm, a pin on said latter arm, a rope connected at one end to said arm and extending over said pin, and means for drawing said rope to pull on said arms to close and open said door. A

In testimonywhereof I afiix my signature.

PAUL K. STROGHALEN. 

